James b



4 j. B. SKINNER.

Plow-Coker. f

Patented July 2, 1867E invention i JAMES n; SKINNEB, 0FnRooKFoRD,-ILLINOIS;

'Lesers Patent Nq. 66,259, daad-July 2,1861,

mmovsnsnesn PLoUess,

dit rlgehule meme tu in than etters utmtran making insti nf the sami.

V'Io A LL WHOM `1T MAY CONCERN Y i, A -Be it knownv vthat I, JAMES B.SKINNR, of Rockford', in the county/of Winnebago, and State of Illinois,have invented y certain 4new and luseful Improvements in 'Plougl1s, ofVwhich lthe i-ollovving` is n full, clear, and vexactdescriptipn,reference being had to ythe accompanying drawings which make part ofthis specification. i Coultersas heretofore constructed'havebeenpivote'd 'to a plough-beamjinsuclrmanner 4este leave the coulterfree-to swinground without restraixxt.` .This method offconstructionIhave fou-nd by experimenttobe defective, as'inturning, the horses areliable to back into' the conlter-as itl swingsgound,,andinjurefthemselvea or, in the case of 'gnngplenghm the coulters whenlifted lin turning; are -apt -to ,swing forward and cutinto the L .axleor other prtsfof the'machine:4

Now it is the ,object ot` my invention to obviate the abovefnamed andother objections to 4the-use ofswivelling l 4 coulters, and to'this endthe improvements herein claimed consist in so connecting a swivellingconlter toa plonghf l beam as to limiti'ts lateral vibra-tion, and" yetvallow the coulter tn beadjusted both vertically `alnd'laterally on.V

In the accompanying: drawings I havesh'own several modes of carrying outthe objectof my invention, ea'ch of the figures showing adii'erentmodicationof my'improvement. The plough-beam is show n in'redinall the figures, and lettered A, and in each ligure a con'lter` C issupposed to be pivoted to a sw'ivelling bearing or caster-Jolie., B,forming part of aspindleyb, as in Figurel.4 i v VIn Figure 1 thespindle'b is shown as inserted ina tubular' socket, E, fixed toda4bracket-plate, Fes'eeur'ed ,tov-the under side ofthe beam by a pivot,bolt, or fsciew, f, and adjusted-and held nearer to or farther-from beamby ks.V slot, f, and set-screm. 'The socket E has a groove. or recess,4e, formed-ouwe side in 'which 4a'f'pin'or projection onfthe spindle bplays. Therecess is large enoughv to per'm-t the play required bythee'ou'lter, 'and yet limits its vibration beyond a` certain point. It isobvious that this plan might-be varied by putting the ypiu'on thesocket,andthe groove in the spindle',` butthisivould be achan'ge `of formmerely, while theprincipl'e'would be the same:` The coulter is adjustedvertically in its socket by'means oi' washers b which in this instand?are gro'oved to correspond `With the socket'f, in order to'pass over thestein of the caster-yoke.` V These washrsare plaeed above er belowr thebeam to vary'the adjustment as desired. I In Figuie 2 an additionalbraeket,`.G,is shown as secured ujionthe topA of the beam in the'sameway as the lotvrioneF, iig. `l.',' wl1ilethe spindle b swivels insockets i-ltlie bracket F Gr,1 the4 tubular socket beingrdispensed with.The v'ibmtienof the coul-ter is limited 'byfa pin, g, 'vhv l 1`ichstrikes against 4the beam which is tected byguardyplates a.: VThis planhas the advantage of supporting the spindle both at top and bottom.

' Figure l.represents e slotted bracket-platre, H,.carryi ng a tubularsocket, H', and secured 'on the under. 'side of the beam by a clamp-bar,I, on top-of the beam, and tivo..connecting-belts@ ou'e'on'feach'side ofthe beam,4 whichjpa s's through slotsrlz in the braeletlplateiu-,Theseslots Vpernri tithe socliet tio-beset in or `out from the-beam,and hold'it securely in any-desired position@ 4'.lhe vibrationofthefcoulter, in thisfinstance, islimited by a recess in the top of thesocket invvhich a-pin on'the spindleplay-s.-4 i 'i i Figure shon'sy twoslotted bracket-plates; J J4', connectedfby -bolts' 7'.p'assng through"the beam,"- t-h'e.v cast'spindle passing through both brackets, whichare adjusted by slotsvthichvpermit theirmovenient on thel t forvvsrdboltj, {hex-ear bolt j lforming afpivot. f The casterspindle passes.throught-these brackets jundis limited-4. inits-vibration, as in iig.3`.' i j i p 'I i Figure 5 shows two slotted bracket-plntesKK aboveand-b elovv` the' beam, connected -bybolts coneach side ofthe beam, andwith the caster-spindle passing. through the brackets'Inthi'sinstnnce'the'washers l are shown as interlocking with each otherby 'means of tongues 4and grooves', the vibration of "the, spindle bbeing' 'limited by lmeans of' a pin on the spindle takinginto 'eithervthe toporthe' bottoni of the washers.` 'i By allowing the coulter toswivel it is enabled to'follow the mov'ernentsof the beam withless'frictiomwhile y by limiting its vibration'rI prevent it from-turning so far as to injure the team or` interfere with the workingno'fthe plough, while the facilities afforded by my invention for both'vertical andflateral adjustments 'ofthe coulter enable me readilytoadapt i t to the varyingconditions under which itie'h'requiredf'to'work; I n f My improvements have been described asapplied to a rolling coulter itiey.lxon'evex',I obviousthatthey'areVequally;applicable toa curved cutting eonlter.

Wht I 'claim 95mg?v invention, url desire to secure liyLetlei-s latent,is 1. Adjusting-thc co-ulter both vertically and laterally,-sculsvtmitially in the mannerv described. 2. The combination of thec0ultei''spin\.lle with the ln'axckctl-pl'ate and socket :1S shown inig. 1. 3. 'The combinrltion f the coxltcspindle with the doublebracket-plates :md stop pin, n shoy'n in fig. 2. 4. The combination ofthe lateral-ly adjustable bm cket-plutc, spiiidle-socliet, and diagonalchimp, 11's shown in g. 3. I I i 5. The, combination of thespindlelaternlly, adjustaible bracket-plates, and clamp-bolts, :Ls shownin hg. 4. I 6. Theveoml-)inavtion with the costei-spindle of a serios oflooking washers, :1s-shown in fig. for the pur-- pose' described.

Iii testimony whereof I have hereunto sbscifibed my name.

i v JAMES B. SKINNER.

Witnesses:

'WHEELER MEAD,

HENRY M.` Smm-'m1,

